The stability of the surrounding rock mass depends upon its strength and deformation properties as well as the situation of stress convergence in it, and the key is the integrality of the rock mass.
洞库围岩稳定性一方面取决于洞库周边围岩应力集中的情况，另一方面取决于岩体强度和变形特征，其核心问题在于岩体完整性。
Based on this, the stability of the surrounding rock mass and the rock wall crane girder is evaluated.
在此基础上，对洞室围岩及岩壁吊车梁的稳定性进行了评价。
Study on the characters of rock mass condition and the stability of surrounding rock has great practical significance to optimize design parameter and to advance construction quality.
走马岭隧道岩体结构特征和围岩稳定性研究，为优化设计参数，提高施工质量提供理论指导，对保证施工安全以及优化设计具有重要工程实践意义。
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